Poll what shoots the flattest to 300yds

[Catfish]

Evan,
According to my Blistic tables there are several that will shoot point blank ( plus or minus 2 1/2 in.) to 300 yrds. The .22-250 and the .220 Swift with 55 grn. bullet will both do abt. 310 trds. The .25-06 with an 87 grn. bullet will do 310. The .264 with a 100 grn. SP will do 300 and the .300 Win. and Weatherby will both do abt. 305 with a 125 grn. bullet. The best you can do with a .243 is abt. 280 and with the 6.5 Rem. is abt. 255. I don`t have the tables on the .204, but it should do alittle better than anything on the market, factory that is.